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Combo Box populating a text box after update

Combo Box populating a text box after update

Combo Box populating a text box after update

Please excuse me if this is elsewhere but I can't seem to find it.

I am trying to build a C# windows application form

I have a combo box that is populated from a SQL database, which after the user updates the combo box, it adds an email address into a hidden filed on my form that will get passed to some emailing code I have.

How in simple terms do I call the database table with the email address after I do the update ion the combo box?

Sorry if this is a bit simplistic, but I am new to C# and am trying to learn it on this project.

'Clever boy...'

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